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16 Cards in this Set
- Front
- Back
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What are the three shunts in the fetal circulatory system? |
ductus venosus, foramen ovale, ductus arteriosis |
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What does the ductus venousus do? |
connects the caudal vena cava to the umbilical cord |
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What does the foramen ovale do? |
Shunt blood from right to left atrium * in adult becomes fossa ovale |
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What does the cranial vena cava do? |
Return unoxygenated blood |
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What does the ductus arteriosis do? |
Shunt blood from pulmonary trunk to the aorta |
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What does the ductus arteriosis become? |
ligamentum arteriosum |
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What is the first part of the heart to start beating and differentiate? |
Truncus arteriosus |
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What divides the atrium into left and right? |
atrioventricular cushions which grow out to meet each other |
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What divides the common ventricles? |
Septum primum which grows down atrium to endocardial cushion. |
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Which direction does the inter ventricular septum grow? |
Up! |
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6th aortic arch gives rise to: |
pulmonary trunk and veins |
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left 4th arch gives rise to: |
aorta |
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3rd aortic arch gives rise to: |
Common carotid |
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3rd and 4th arches: |
systemic circulation |
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4th right subclavian: |
Right subclavian |
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Ostium primum and secondon are: |
holes in the right atrium to left atrium |
